Safety razor with ribbon shaped blade



m 3o,1939. -N K;..-OUN R 2,160,727

SAFETY RAZOR WITH RIBBON SHAPED BLADE Filed NOV. 30, 1937 I 2 Sheets-Sheet 1 May 30, 1939. N. K. FOUGNER v 7 2,160,727 SAFETY RAZOR wIT a RIBBON SHAPED 131M587 Filed Nov; 30, 1937' 2 Shets-Sheet 2 Patented Me so, was

T ZZ R wim'amsos sax-r1215"? '"BLADE'-" l Nicolay Knudtzon FougneraLilleaker, near v .Norway, assignor of one-half to Eckbo, Oslo; Norway fimteiiber-3d, itstsenarm. 117,308 I -I r a September 1, 1937 w 1 Claim 1 The present invention relatesftofasafey razor-""is presseda'gainst the -ribbon shaped blade and with continuous ribbon shaped razor b ade of the type specified iri' III. S. Patent No.'2,( )12,868" and which comprises a"delivery and receiving spool for the ribbon shaped bladelo'cated in a flat box, the ribbon shaped blade passing from one spool to the other over a clamping or guiding member,-which is adapted to be displaced in a direction substantially perpendicular to a line through the axis of the two spools, in order to clamp the ribbon shaped blade against a rib in tegral with the box.

The object of the present invention is to provide a safety razor of the kindspeciiie'd, in which the clamping or guard member and the means for pressing the sameagainst,- the rib integral with the box may easily be removed from the box, so that boxes containing worn blades may quickly and easily be replaced with boxes containing unused blades without it being necessary for the user to open the box and perform the removal andinsertion of blades.

Preferably this is obtained in accordance with the present invention by adapting the adjustable guard or clamping member, by means of which the ribbon shaped blade is pressed against the rib connected with the box, to be removed by means of an externally threaded hollow spindle, the connection between which and the adjustable guard or clamping member is formed by means of a friction trunnion secured to the clamping member and fitting into the open end of the tubular-spindle, so that the connection between the said spindle and the said adjustable guard may be released by overcoming the friction resistance when the adjustable guard or clamping member has been removed a suflicient distance from the rib.

Preferably the friction trunnion may be rotat member, although this is not absolutely neces sary. I

In order to prevent the guard plate from rotating about its central. axis during its move- 45 ment towards and away from the ribbon shaped blade the box is provided adjacent the rib with ribs or edges forming guides for the clamping or guard member in the longitudinal direction of the spindle.

The releasing of the guiding plate from the box in accordance with a further modification may also take place by providing the clamping or guard member with a short handle, adapted to engage with its free end an elastic pressure member on the box, by means 01' which the guard bular spindle 6, which may be rotated by means 40 ably connected with the guard or clamping w di sn the rib in such a manner that it maybe removed in-alateral direction by pressing-the elastic member downwards.--' a some forms "of the invention are illustrated on .5 the drawings." Figure 'l is a view of the safety razor; Figure 2'isan axialsection perpendicular on Figure 1. Figure 31s a'view of the safety razor with one half of the box removed. Figure 4 is a section on the line IV-IV on Figure 3. 10 Figure 5 is a detail section of a modified embodiment and Figure 6 illustrates the latter embodiment with the guard plate swung sideways. In accordance with the form illustrated on Figures 14, I is the box, the two disk shaped parts 2 and 3 of which contain the used and unused part of the ribbon shaped razor blade respectively. 4 is the rib connected with the box, against which the ribbon shaped blade is pressed by means of the guard plate 5, which is provided with teeth in ,the usual manner. The. movement of the clamping plate 'or guard 5 in the direction against and away from rib I is caused by means of the externally threaded tuof hand knob I. The guard plate is provided with a friction trunnion 8, which may preferably be made in the same manner as an electric contact pin consisting of two elastic half cylinders, and which fits intd the. opening of the tubular spindle 6.

This friction trunnion 8 may preferably be rotatably connected with the guard plate 5, although this is not absolutely necessary.

In the interior .of tubular spindle 6 there is located a plunger 9, which is pressed outwards by means of a helical spring Ill. Consequently the pressure of the guiding plate against the ribbon shaped blade and rib 4 cannot exceed the pressure determined by helical spring in.

The receiving spool for the ribbon shaped razor bladiis indicated at H and is rotated by means of two serrated disks l2, l3, which are screwed into the boss 01' the spool fromopposite sides and with opposite direction of thread. Preferably the threaded members of each disk l2, l3 may have diflerent diameter in order to avoid confusion.

By turning the disks l2. l3 against the winding direction these may easily be removed from the box. The receiving reel is provided with an elastic pawl l4 adapted to engage depressions in-one of the box walls so as to lock the reel against backwards turning.

In order to avoid dangerous stress on the razor u blade in case attempt should be made to turn the receiving reel when the blade is clamped between the guard member 5 and the rib I the receiving reel is provided with a braking device consisting of a pivoted or elastic lever, the inner part of which cooperateswith a shoulder on the receiving reel, whereas the free end-has a depending tongue H in engagement with the knob 1 on spindle 6, so that the brake is put in action when the guard 5 approaches the clamping position and is only released when the razor blade is quite free between the guard and the rim.

In accordance with the form diagrammatically illustrated on Figures 5 and 6 the guard plate 5 is provided with a short arm la, the end [9 of which is in engagement with a head 20 pressed in the direction of rib 4 by means 'of spring 2i. By depressing head 20 against the action of .he spring to the position illustrated on Figure 6 the guard plate 5 may as indicated be swung out laterally so as to be removed from the spool box.

I claim: I

A safety razor comprising an oblong fiat frame having a rib extending transversely across approximately the middle of one longitudinal side thereof, a spool in one longitudinal end of the frame, a continuous ribbon shaped razor blade having one end secured to said spool, said spool being rotatable to wind used, portions of said rib- 'bon shaped blade thereon, the other end portion of said blade being coiled in the other longitudinal end 01' said frame, a clampingand guard member longitudinal ends, said clamping and guard mem:

her being displaceable transversely of the major axis of the frame and adapted to clamp said blade into shaving position against said rib, means for moving said clamping and guard member comprising an externally threaded tubular spindle provided with an open end, said spindle being connected to said clamping and guard member through the medium of a trunnion secured to said member and frictionally engaging in the open end of said tubular spindle, so that the connection NICOLAY KNUDTZON FOUGNER.

in said frame below said rib and between said 

